Top-level container that allows interactive drawers to be pulled from the top and bottom edge of
the window. For WearableDrawerLayout to work properly, scrolling children must send nested
scrolling events. Views that implement NestedScrollingChild do
this by default. To enable nested scrolling on frameworks views like ListView, set android:nestedScrollingEnabled="true" on the view in
the layout file, or call setNestedScrollingEnabled(boolean) in code. This includes the main
content in a WearableDrawerLayout, as well as the content inside of the drawers.

To use custom content in a drawer, place WearableDrawerView in a WearableDrawerLayout
and specify the layout_gravity to pick the drawer location (the following example is for a top
drawer). Note: You must either call setDrawerContent(View) and pass
in your drawer content view, or specify it in the app:drawerContent XML attribute.